Valve mechanism



Feb. 21, 1928.

Patented Feb. 21, 1928.

UNITED srArssl PATENT OFFICE.

FRANK` A. HALLEOK, OF OAK PARKQTLLINOI'S, Ass'IyGNoR To SULLIVAN MACHIN-ERY COMPANY, A CORPORATION OF MAssAoHUsnTTs.

VALVE MEOHANTSM.

Application met january 3o, 1922'. serial No. 532,741.

My invention relates to valve mechanisms, and more particularly to valvemechanisms for use on compressors or pumps.

An object of my invention is to provide an improved valve mechanism forpumping machinery. Another object of my invention is to provide an'improved combined inlet and discharge valve mechanism for pumpingmachinery. A further object of my invention is to provide an improvedcombined inlet and discharge valve mechanism for pumping machinery soconstructed as to permit easy and accurate insertion and removal of theparts. A still further object of my invention is to provide an improvedvalve mechanism in which the machine Workl ymay be a minimum and inwhich a device which may be readily assembled may be produced. Otherobjects and advantages of my invention will hereinafte" more fullyappear.

ln the accompanying drawings have shown for purposes ofr illustrationone form which my invention may assume in practice.

1n these drawings,-

1 is a vievv in central vertical section through a pump or compressorcylinder provided lwith the illustrative form of my improved valvemechanism Vwhich is shown therein in elevation.

Fig'. 2 isa central section on a plane corresponding to the .plane ofFig. 1 through one of the combined. `inlet and discharge valves.

Fig. 3 is a section on the line 3 3 of Fig. el..

Fig. A is a vieu' of a fragment of the cylinder' head removed from thecyiindoil' and showing the method of assembling the valves in the head.4

Fig. 5 is a modification.

1n the accompanying drawings lf have shown a compressor having acylinder 1 co'n'iprising a cylinder member proper 2 having a bore 3 andhead members A, and 5. A piston 6 reciprocates in the cylinder andserves to alternately draw in and compress charges of air. 1n each ofcylinder heads et and 5 there are arranged a plurality of sockets orvalve cage receiving chambers 7 which al?? @ged -ll SeeS'GXlidJ-.DgP89113 Way around the periphery of the cylinder, but of Which only oneis shown, at each end of the cylii'ider in F ig. 1. These chambers 7communicate through an open side passage 8 with the cylinder bore and`are provided with coaxially arranged annular surfaces 9 and 10 againstwhich the Aremovable portions of the valve mechanism may be se-L openinto an annular port 17 in a valve seat surface 18. The valve seatsurface 18 is machined to permit the cooperation therewith of `anannular valve 19 of relatively A thin sheet metal and inside the valveseat surface 18 are arranged a series of bosses E20l herein four innumber and equally spaced, which bosses serve as guiding means for theinner edge of the valve 19 and have holes through them through Whichbolts 21 pass, these bolts also passing through inwardly projecting ears22 formed on a generally annular guard plate 13 and holding the guardplate rigidly against a shoulder 23 on the member 11. A transverselybowed annular spring19 is arrangedkbetiveen the guard plate 13 and thevalve 19 and engages the same along parallel` lines.

The valve portion 12 is very similar to the portion 11. This portionalso hasan an- 'nular shoulder, 211, adapted to cooperate With theshoulder 9 on the cage receiving chambei', the diameters of the portion12 and the shoulder 9 being less than thoseof the portion 11 and theshoulder 10.` The portion 1Q is provided With a plane valve seat surface25' and is traversed by a series of passages 26 opening into an annularport 27 opening'through the seat surface 2 5. A

series ofv spaced bosses 28, corresponding with the bosses 20, serves toguide an annular valve 29 which seats upon the surface 25; and a guard14, above mentioned, is secured by bolts 30 to the member 12, thesevbolts passing through holes in the bosses 28.

A spring 29 made of an annular transversely bowed piece of springmaterial is disposed between the valve 29 and the. guard 14 and servesto maintain the valve normally seated. 1t will be noted that the entirecentral portions of the guards 13 and 14 are cut away and that themembers 11 and 12 are cent ally bored to form bores of differentdiameters, these bores being designated respectively 31 and 32, and thebore 31 being counterbored for a 4distance as at 33.

For the purpose of holding the valv-e elements in assembled relation thefollowing means is employed. Clamping bars 35, lier-cin adapted tocooperate in securing ytwo valve meclianisii'is, are provided with dowelpins 36 seatingv in holes 37 in the adjacent ends of the head members.These bars are bored to receive studs 38, which are located in axialalinement with the cage chambers. The studs are constructed to be aloose lit ij'or the bores 31 and 32 and are threaded at suitable pointsto'receive nuts 40 and 41. These studs are riveted to the bars and thewhole is then placed against the rcylinder-engaging end oi' the head.The assembled parts 14 and 12 are slipped over the studs and the nuts 41put on and tightened up to draw the shoulder 24 against the shoulder 9.The parts 13 and 11 are then slipped on the studs and the bolts 40 puton and tightened up. Tlis draws up the shoulders 15. hard. against theshoulders 10. Coverv plates 42, adapt-ed to close hand holes 43 in therim ol' the head, can then be put in place and the device is ready tooperate.

rllie operation of my improved valve mechanism will be readily apparent.Considering the structure shown in Figures 1 and 2, as the piston movesto the right theY pressure within the cylinder will be reduced and thevalves 19 will be unseated, flatl tening the springs 19', and air willenter the cylinder. (ln the opposite stroke ot tlic piston the valves.I9 will be closed and the valve-s 29 will unseat te permit dischargeoiC the fluid being pumped, the springs 2,9y then being flattened. ltwill be evident that the valve is securely ii'iounted, the several partsbeing individually adjustable to a tight seat and by reason ol' the iactthat the valves are put in by pairs the entire work can done troni theside ot the cylinder head, to which access is had by way of the handholes 43.

ln the modilication shown in Fig. 5, spiral springs 19 and 29 oiresilient ribbonlike 'iormare used. The device is otherwise the saine asmy torni first described,

While I have in this application specifically described two embodimentswhich my invention may assumein practice, it is to'be understoody thatthese forms are shown for illustrative purposes only, and that theinvention may be modiliedand embodied in 2.- In a pump, a plurality ofvalve receiving chambers having parallel axes, a plurality of valvestherein, and means for holding said valves in said chambers comprisinglioldii'ig-in bolts ext-ending through said chambers and engaging inpairs a clamping bail extending across the ends of said chambers. i

ln a pump, a plurality ot' valve receiving chambers having parallel axesdispos-edi in the head ot a pump cylinder, valve mechanisms in saidchambers, a clamping bar eX- tending across the ends ol a plurality ofsaid.

chambers, and holding-inr bolts secured in said bar and engaging saidvalve mechanisins. v Y

4. 1n a pump,'a plurality of valve receiving chambers, a plurality ofvalves in said chambers, and means for holding said valves iii saidchambers including threaded ele ments extending longitudinally ol said.

chambers and connected at the innerends oi said chambers by atransversely extending portion,

5. An article of manufacture comprising an anchor member adapted to beassociated with a compressor cylinder andhaving a plurality of spacedstuds projecting thereifrom each adapted to receive in coaxial relationtherewith a complete valve and valve seat mechanism.

(i. An article ol' ii'ianul'acture con'iprisiiig an anchor memberadapted to be associated with a compressor valve chest and. having a.plurality of studs projecting therefrom each adapted to receive aplurality' of complete valve and valve seat mechanisms and having meansto hold. the same thereon. l

7. In a pump, means providing a cylinder having inlet and dischargepassages, a valve cage receiving chamber being formed intermediate saidpassages, inlet and discharge valves spaced axially in said chamber,andv means for holding the same in said chamber including aV transversemember disposed in one of said passages beyond the end ot said chamber,and anchor-ed to resist iis nii

movement toivard said chamber, and a single bolt extending through thevalves longitudinally ot the chamber and adapted to pull the valvestoward said transverse niember to secure the valves in Vplace in saidchamber.

8. In a pump, a inemberkhaving a valve cage receiving chamber formedtherein, inlet and discharge valves .spaced axially in said chamber, andmeans for 'holding the saine in said chamber including ka bolt extendingthrough them longitudinally of the chamber and a transverse memberabutting said first mentioned member ladjacent lthe end of the chamber,said transverse member with the bolt and said valves being necessarilyremovable in opposite directions relative to said chamber.

9. Ina pump, a member havinga valve cage receiving chamber formedtherein, inlet and discharge valves spaced axially in said chamber andmeans for holding the same in said chamber including a bolt` eX- tendingthrough them longitudinally of the chamber and atransverse memberengaging said irst mentioned member adjacent. the end of said chamber,said transverse member being of greater length than the Width of saidchamber, said bolt and valves being necessarily removable in oppositedirections from said chamber.

10. In a pump, a cylinder having inlet and discharge passages, a valvemechanism receiving chamber being formed intermediete said passages,inlet and discharge valves in said chamber, and means including aT-shaped clamping element disposed across one of said passages andhaving its stem placed under tension to hold said valves in saidchamber. y ll. In combination, av compressor cylinder, a unitaryvalvemechanism for controlling` i'loiv ot fluid from only one end thereofcomprising a plurality of valve seat elements having annular port meanstherein, Y

a plurality of guard elements, a plurality of annular valves kbetweensaid seat and `guard elements, transversely bowed annular springsbetween said valves and: guard elements, and means includinga studextending axially ot all oit said elements and a plurality of nutsk forholding them in assembler. relation.

l2. In a valve mechanism, a plurality of' valve seat elements havingwhen assembled ported animar valve seating surfaces iii spaced parallelplanes` a plurality et guard elements, annular valveA elements arrangedbetween said seating surfaces and guard elements.v spring elementsbetween said valve elements'and guard elements, a chamber havingshoulders on which certain of said elements are adapted to seat, andmeans for holding said elements in assembled relation in said chamberincluding a stud held against .a valve mechanism receiving chamberproviding seats for inlet and discharge .valve mechanisms, said chamberbeing associated with only one end of said cylinder, of inlet anddischarge valve mechanisms in said chamber, and means including aT-shaped clamping member having' a head secured transversely of one' ofsaid passages and Vholding both said valve mechanisms on their seats insaid chamber, said head being of a length at least equal to the Width ofone of said valve mechanisms.

14. In a pump, a cylinder, a cylinder head abutting against saidcylinder, a chamber in said cylinder, a chamber in said head openinginto said first mentioned chamber, a shoulder in said head, a valve cagein said chamber seating upon said shoulder, a stud passing through saidvalve cage, a nut cooperating therewith to hold said cage against saidshoulder, and means engaged by said stud and against Which the samereacts when said nut is tightened arranged Within said cylinder. l

l5. In lcombination With a compressor'cylinder, means forming a chamber,valve iiie'chanisininsertible in said chamber and movable in onedirection to its normal assembled position. a second chamber having anend Wall and disposed adjacent said valve chamber, said second chamberhaving coniH munication with one end of said cylinder, and means havinga portion abutting the Wall of one of said chambers and having` anotherportion extending through a plane containing said Wall andv into theother .chamber for holding said valve mechanismv in position, said meansbeing removable.

only on movement Ain the direction of the movementof said valvemechanism towards assembled position. f

16. In combination, a compressor cylinder, means forming a valvechamber, valve mechanism therein removable therefrom only in onedirection, a second chamber advjacent said valve chamber and havingconiniuiiication with only one end of said cylinder through saidmechanism ands-aid other chamber, means having` at least a portiondisposed Within said second chamber and adapted tofhave operativeengagement with said mechanism to hold the same in position, andmeans-whereby said holding means upon disengagement is removable only ina direction opposite to said other direction.

17. In combination. a compressor cylinder having inlet and dischargepassages.v a valve mechanism, fceiving chamber being formed intermediatesaid passages, inl-et and dischargevalve mechanisms insertible in saidchamber, one of said passages comprising a second chamber adjacent saidvalve chamber, and means for holding said valve mechanisms in positionby tension, said means having a portion engaging a Wall of said secondchamber and a cooperating portion extendingthrough a plane containingsaid Wall into said valve mechanism'receiving chamber so as to haveoperative engagement with said mechanism to effect said holding action.

18. In combination, a compressor cylinder, means forming a chamber,valve mechanism removable therefrom in one direction, a second chamberadjacent said valve chamber and having; communication with an end otsaid cylinder through said mechanism and said other chamber, and meansfor holding said mechanism in position, said means having` portionengaging a wall oi one ot said chambers and a cooperating portionextending through a plane containing said Wall and into the otherchamber so as to have operative engagement with said mechanism to effectsaid holding action, said latter portion being movable upon removal ofsaid mechanism lin only a `direction opposite to said other direction.

19. In combination, a compressor cylinder, means forming a chamber,valve mechanism insertible therein trom one direction. a second chamberadjacent said valve chamber and having Vcommunication with an end oi?said cylinder through said mechanism and said other chamber, means forholding said mechanism in position, said means having a portion a Wallof one oi' said chambers and av cooperating portion extending through aplane containing said Wall and into. the other chamber to have operativeengagement with said mechanism to effect said-holding action, and meanswhereby one of said portions is placed under tensionduring` holding ofsaid valve.' 20. In a valve mechanism, a plurality of separate coaxialvalve seat elements one of which has a portion with a recess therein,and means for holding another of said elements in position including astud and a nut Which is disposed within the recess of,

said first element.

21. In a valve mechanism, a plurality ot separate'coaxial valve seatelements one ot which has a .valve guard supporting portionradiallyextending portion disposed Within that a plane to ivhich the valve axisis per.v

pendicular cuts elements of each mechanism, and means for holding saidmechanisms in position including a single axial stud having associatedtherewith a radial portion disposed adjacent said Voverlying portions.

23. In combinatiom'coaxial valve mechanisms each comprising a seat, aguard and a valve, and means for holding saidI mechanisms in assembledrelation With the guard of one closely adjacent the seat or" the'othercomprising retaining means including means providing` a shoulderengaging one orsaid mechanisms, said other mechanism providing a recessin which said shoulder providing means is received.

24. In combination, coaxial valve mechanisms each comprising a portedseat member formed With axially extending portions, a valve cooperatingwith said ports, a guard therefor secured'in contact with said portions,yand a spring disposed between' said guard and valve, and means forholding said mechanisms in assembled relation With the guard oi oneclosely adjacent the seat member of the other comprising retaining meansincluding means providing` a shoulder engaging one oi .saidmechanismasaidyother mechanism providing a recess in which said shoulder-providingmeans is received.

25. In combination, a plurality. oicoaxial valve mechanisms eachconstituted of separable seat and guard elements independent of theelements of the other'and disposed,

when assembled` in such relation that a plane to which the valve axis isperpendicular cuts elements .of each mechanism, and retaining means forholding themechanisms in rigid assembled relation.v

26. In combination, a ,compressorI .cyl-

inder, a unitary valve mechanism for controlling ow oi fluid withrespect to only'one end thereof comprising a plurality of valve seatelem-ents having annular port means therein, a plurality of guardelements, a plurality oli annular valves between said seat and'guardelements, spring means between said valves and guard elements, andmeansincluding a stud individual to the valve mechanism at said end oi thecylinder and extending axially through all oic the elements thereof, anda plurality ot nuts for holding said elements in assembled relation.

In testimony whereof I aix my signature.

FRANK A, HALLE CK,

